Sink-and-float testing apparatus.



G. R. DELAMATER.

SINK AND FLOAT TESTING APPARATUS. APPLICATION FILED JULYs, 1909.

961,86. Patented June 21,1910.

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Patented June 21, 1910.

G. R. DELAMATER. SINK AND FLOAT TESTING APPARATUS.

APPLICATION FILED JULYS, 1909 27 M a m m M. 4 w L M 1 W PM I ww %4 7 u mI a 7: & 2 W v fir z M Q I T G. R. DELAMATEIL SINK AND FLOAT TESTINGAPPARATUS. PPPPP OATION FILED JULY 3, 1969.

961,846,, Patented June 21,1910.

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is of greater specific gravity than the solu- .duce a sample of GEORGER. DELAMATER, 0F STRONG, COLORADO.

SINK-AND-FLOAT TESTING APPARATUS.

Application filed July 3, 1909. Serial No. 505,943.

' mechanical means for moving the float transferrer, and Fig. 6 is anend view showing the enga ement of the float transferrer with the saimoving means, a portion of the wall of the tank being broken away.

In the said drawing, the reference numeral 1 designates a tank,preferably, although not necessarily, located in a box or casing 2,which affords a space 3 beneath the tank in which drawers containingutensils may be stored, and end compartments 4 in which certain partsare located and protected from injury.

The tank may be made of any suitable material, such as wood, zinc lined,and is adapted to contain a specific gravity solution, such as zincchlorid 5. Movably arranged in the tank are sink and float collectors 6and 7 consisting, in the illustrated example of invention, of sievessupported upon a frame 8 having rings 9 in. which the collectors areremovably seated. The frame 8, and the collectors supported thereon,-may be raised and lowered by any suitable =means. As shown, the frame isprovided with inverted U-shaped straps 10, the outer legs of which arelocated in the compartments i and work through guides 11 secured to thewalls of the tank and preferably provided with rollers 12' to bearagainst said legs and afford ease of guided movement of the latter. Oneface of the outer legs of each of said straps 10 is provided with a rack13 with which pinions 14: carried by a pinion shaft 15 enage. The pinionshaft at one end is ormed to receive a crank 16, whereby the pinions maybe rotated and the collectors 6 and 7 raised or loweredin the tankthrough the medium of the straps 10. The gist 0 this part of theapparatus is that there are two collectors, one for the sink and theother for the float, movably arranged in the tank, and means for raisinand lowering them therein, irrespective o the particular character ofsuch raising and lowering means. As shown an end wall of the 'box orcasing is provided with a hinged section 17 which may be lowered, asshown by dotted lines, Fig. 1, to permit the crank to be engaged withthe pinion shaft, or said wall of the box or casing may be provided withan opening 18, as shown in Fig. 2, through which the crank arm may bepassed into engagement with the pinion, shaft. When the hinged sectionis used it is held in up? right position by means of a cover 19 when Toall whom it concern:

Be it known that I, GEORGE R. DELAMA- 'rER, a citizen of the UnitedStates, residing at Strong, in the county of Huerfano and State ofColorado, have invented new and useful Improvements in Sink-and-FloatTesting Apparatus, of which the following is a specification.

My invention relates to improvements in a aratus for practicing whatisknown asthe sink and float method of testing, particularly applicable totesting coal.

The sink and float method of testing coal consists in the act ofintroducing a sample of coal into what is known as a specific gravitysolution, such as zinc chlorid, in which that proportion of the samplewhich tion will sink therein, and that which is lighter will float, Therelative proportion offthat which sinks and that which floats can easilybe ascertained by weight, and from the knowled e thus obtained variousinformation is derlvable, such as the value of the coal for specificpurposes, or whether a coal washer or other machine of a coal treatingplant is operating efliciently or with needless loss of valuable coal inthe refuse. The float proportion of the coal, in the sink and floattest, is segregated so that it may be analyzed for various purposes.

Heretofore the practice has been to introcoal into a specific gravitysolution, and remove the float by skimming it off. Such practice is slowand practically impossible of utilization in a commercial way. With myapparatus such tests may be made much more rapidly and with greaterfacility and certainty, and the specific gravity solution may beutilized over and over again.

The invention resides in apparatus hereinafter described, and shown inthe drawings, which illustrate that which I regard as the best kno n.embodiment of my invention.

That which is claimed as new will be set forth in the claims appended tothe description.

In the accompanying drawings-Figure1 is a central sectional vlew of theapparatus. Fig. 2 is a similar view of the apparatus with parts i-ndiflerent position. Fig. 3 is a top plan view. Fig. 4 is an endelevation, the end wall of the box or casing being omitted; and Fig. 5is a plan view showing Specification of Letters Patent. Patented June21, 191i).

r arena Wit. '3 f of fineness or character.

A float transferrer 22 is movably supported in the tank, so that aposition, cooperating with the sink collector 6 to a positioncooperating with the float collector 7. As shown, said transferrer issupported and adapted to run on tracks above the collectors, by means ofover-rum ning trolleys 23 resting on said.v tracks. In the illustratedexample-of the invention the pinion shaft 15 constitutes one of saidtracks the other being designated by the numeral 24. The floattransferrer consists of an open ended cylinder which may: beof thinmetal and is of a diameter slightly less than the diameterof thecollector pans, as shown. The float transferrer in. addition to beingcapable of being shifted from one to the other of the collector pans, iscapable also of "being vertically moved as shown in iccording to thearrangement shown in Fig. 1 it is designed that the float transferrershall be shifted from one to the other collector manually by pushing thesame upon the tracks, but obviously this may be ac complished by aid ofmechanical means, one

, simple way being illustrated in Figs. 5 and 6 of the drawing, whereinthe shifting is accomplished by means of cables 25 trained over drums onshafts 26 operable by means of a suitable handle 27, and having I toengage arms 30 attached to the :float transferrer. In said Figs. 5 and 6the float transferrer 22 is movably su ported on the tracks 15 and 24 bymeans 0 shoes 28 instead of the trolleys illustrated in the otherfigures of the drawing. I regard it preferable to shift the floattransferrer with the aid of suitable mechanical contrivance, as it isdesirable to move the same slowly from the sink collector 6 to the floatcollector 7.

In practicing the sink and float method of testing with my ap aratus,the tank is sup plied with a suitab e specific gravity solution, thefloat transferrer is moved to the position over the sink collector 6 asshown in Fig. 1; the collector is then raised until the'pan thereonincloses'the lower open end of the, float transferrer. A sample of coal,crushed or ground to a suitable fineness, 1s now introduced into thefloatpollector, the

. heavier particles sinking and being collected by the sieve bottom ofthe sink co ctor, and the lighter particles floating in the solutionwithin .the float transferrer. To facilitate the sink andfloatseparation, stirring or agitherein, floating in th uid, is slowly andcarefully shifted to a poit may be shifted from.

lugs 29 particles ave settled in the collector 6 the latteris loweredleaving the float transferrer free, whereupon the said transferrer, withthe float proportion of'the sample confined sition over the floatcollector 7, whereupon this collector .is elevated, inclosing the lowerupper end of'the float transferrer. The lifting movement is continueduntil the col-, lector and transferrer are raised clear out of thesolution, as shown in Fig. 2. During this operation the solution in thetransferrer will have passedthrough the sieve bottom of the collector,but the floating material will be retained lector 6 will also have beenraised clear of the solution, retaining therein the sink proportion ofthe sample, the solution escaping throu h the sieve bottom. Thecollectors may t en be removed from the frame 8, the proportion of eachdetermined, and calculations ROI analysis, or-both, of the value of thecoal for specific. purposes, or for correc- 131011 of fault in theoperation of coal Washtreatlng lant, may be made.

The so ution maybe used for many tests during a long period of time, asthere is substantially no loss or contamination thereof. I have. setforth the apparatus of my invention applied to one Va uable use thereof.The a paratus may be, and likely is, useful for ot cr-purposes, andIfdesire to be under:

it is capable. Having thus described my invention, what I claim is:

comprisin a tank, a collector for t adapted to be moved intocofiperative relation with said collectors to de ositthe sink in thesink collector and trans er the float to the float collector.

2. A sink and float and a co ector for the float in said tank,

havin an open bottom and adapted to be move .into cooperative relationwith said collectors y, collector and transfer the float the floatcollector.

said float material collector to transfer-the e specific gravityliqstood as claiming itfor all the "uses of which 1. A sink and floattesting -ap aratus,

ire sink s.

and a co ector for the floatin said tank,g

and a movably supported float transferrer to deposit the sink in. the

3. A. sink and float testing aji-wipa'ra tus,-

tation ma be resorted to. After the heavier in the collector. The sinkcolmg apparatus, or other apparatus in the coal testing apparatus, Icomprisin a tank, a collector. for the sink I 1'15 and a movablysupported float transferrer float thereto,

' tank above said collectors,

. and means and means for lifting said collectors and said transferrerout of the specific gravity solution in the tank, substantially asdescribed.

4:. A sink and float testing apparatus, comprising a tank adapted tocontain a specific gravity solution, a movable frame arranged in saidtank, a s nk material collector and a float material collector supportedby said frame, a float transferrer movably supported and adapted to bemoved into cooperative relation with said collectors, for raising saidcollectors and float transferrer out of the specific gravity solution inthe tank 5. A sink and comprising a tank, sink material and floatmaterial collector's movably supported in said tank and comprising panshaving sieve bottoms, a float, material transferrer movably supported insaid tank above said collectors and adapted to be moved into cooperativerelation with either thereof, and means for raising said collectors andsaid transferrer out of the solution in the tank.

6. A sink and float testing apparatus, comprising a tank, a framemovably arranged in said tank, a sink collector sieve and a floatcollector sieve removably carried by said frame, tracks extending acrossthe a float transferrer movable on said tracks and adapted to be movedinto cooperative relation with either of said collectors, and means forelevating said collectors and said transferrer out of the specificgravity solution in the tank.

comprising a tank, a sieve supporting float testing apparatus,-

7. A sink and float testing apparatus I and provided with invertedU-shaped straps one leg of which extends outside the tank, meansengagingthe said straps for raising and lowering the frame, a sink materialcollector sieve and a float material collector sieve movably supportedby said frame, tracks extending across the tank above said collectorsieves, movably arranged on said tracks and adapted to be brought intocooperative relation with either of said sieves. V

8. A sink and float testing apparatus, comprising a tank adapted tocontain a specific gravity solution, a sink material colame movablyarranged in said tank and a float material transferrer lector, a floatmaterial collector movably ar-- ranged in said tank, a float materialtransferrer of less diameter than said collectors, movably arrangedabove the said collectors and adapted to be moved into cooperativerelation with either thereof, means for moving the collectors withrelation to the float transferrer to inclose the lower end of the latterand to lift said collectors and transferrer out of the specific gravitysolution in the tank, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

GEORGE R. DELAMATER.

Witnesses GUY R. SKULL, JAMES M. NORRIS.

